baber/WOPTO huggingface dataset:
Patent KR-20000054877-A (KR)
Inventor: JEONG MYEONG RYEOL
IPC: G02F1/1335
Filed: 1999-02-01
Abstract: PURPOSE: A liquid crystal projection apparatus is provided to convert the characteristics of the light incident on a screen to an original polarized light, so as to reduce the color difference of left/right screen. CONSTITUTION: A liquid crystal projection apparatus includes a light source(10), reflection mirrors(31,33,35,37), liquid crystal display devices(41,43,45), a color prism(50), a projection lens(60), a screen(70) and a phase delay plate(80). The reflection mirrors(31,33,35,37) change the light path and are implemented on a predetermined position of the light path. The liquid crystal display devices(41,43,45) pass or reflect the light from the light source(10) based on the wavelength of the light. The color prism(50) combines the lights from each of the liquid crystal display device in one path. The projection lens(60) projects the image from the color prism. The screen(70) includes a planar lens and a lenticular screen. The phase delay plate(80) is implemented on the light path between the color prism and the screen.
Patent KR-19990046413-A (KR)
Title: 우편번호가수록된전자인식형우표발행장치를부착한우체통
Filed: 1999-03-09
Abstract: 본 발명은 「우표와 우편번호」를 일체화 한 전자 인식형우표의 제작과 판매를 위한 무인 우표판매장치 및 그 관리시스템 이다. 우편물 발송인이 우표 구입 단계에서 우편번호정보 등이 기록된「전자인식형」우표를 선택 사용하므로써, 집 배송 과정에서의 지역분류의「자동화」가 가능하고 우정행정의 각종 통계 자료의 수집이 용이토록 한다. 
     본 장치는 3개의 주요 부분으로 구성된다.  「전자 인식형 우표」는 우편번호와 관련 정보가 기록된 우표대용의 전자인식형(예: 바코드)기호로써 규격 봉투에는 직접, 소포등에는 부착할 수 있는 스티커 형으로 출력된다.「무인우표판매장치」는 우편물을 수집하는 '우체통'의 기능을 하면서, 우표 발행장치가 장착된 일종의 '자동판매기'로써 발송인이 우편물 발송 특성과 착신지 우편번호를 선택하는  「안내 및 입력장치」, 우표 요금을 징수하는 「화폐 인식장치」, 중량 우편물의 규격을 측정하는 「전자 감응식 저울」과 전자 인식형 우표를 출력하는 「인쇄 장치」 및 투입된 우편물을 보관하는 「우체통」으로 구성되며, 「중앙관리 시스템」 은 각 지역에 산재한「무인 우표판매장치」에 우편번호 정보, 우편요금 체제 정보를 제공하고 각종 통계자료를 수집하는 컴퓨터 소프트웨어다. 
     본 발명의 도입 효과는 종래의 우표발행경비 및 관리비 등을 절약할 수 있고, 배송 및 분류 과정에서 전산화와 기계화가 가능하므로써 신속한 우편물의 배송이 가능하고, 단순 분류작업으로부터 작업자를 해방 시킨다. 한편 전산화된 우편물 취급정보를 통해 각종 정보의 수집이 가능하다.
Patent KR-19990077751-A (KR)
Title: 동종 이식거부 반응을 억제하기 위한 약학 조성물
IPC: A61K31/44
Filed: 1999-03-10
Abstract: 본 발명은 유효량의 하기 화학식 1의 화합물 또는 약제학적으로 허용가능한 이의 염과 사이클로스포린 A 또는 FK506의 조합을 포함하는, 포유류의 동종이식 거부반응을 억제하기 위한 약학 조성물에 관한 것이다: 
     
       
         
       
     
     상기 식에서, 
     n, A, B, R 1 및 R 2 는 명세서에서 정의되는 바와 같다.
Patent KR-20000005616-A (KR)
Title: Semiconductor device
Inventor: IWAMOTO TAKESHI
IPC: H01L21/82
Filed: 1999-03-22
Abstract: PURPOSE: A semiconductor device is provided to minimize a semiconductor device by using a fuse layer cut by a beam irradiation to control a redundancy circuit. CONSTITUTION: A semiconductor device comprises: a first insulated layer(2); a fuse layer(3); a pseudo fuse layer(7); a second insulated layer(4); and a protection film(6). The fuse layer is extended toward one direction on the first insulated layer and cut by a beam irradiation in order to control a redundancy circuit. The pseudo fuse layer is contacted to at least one side of the fuse layer on the first insulated layer. The second insulated layer covers the fuse layer and the pseudo fuse layer. The protection film is formed on the second insulated layer. An interval of the fuse layer is less than 4 micrometer or 4.5 to 5.5 micrometer.
Patent KR-20000061034-A (KR)
Title: 손가락 색과 그 제조 방법
Filed: 1999-03-23
Abstract: 본 발명은 지면이 1장씩 확실히 넘겨지게 하고, 또한 지면이나 손가락 색(finger sack) 자체가 조각 조각 찢어지는 불상사를 미연에 방지하도록 한 것이다. 
     상단부가 폐쇄된 비교적 연질의 고무재로 이루어지는 원통형의 손가락 색 본체와, 상기 본체의 상부에 뚫린 다수의 인덴테이션으로 이루어지고, 상기 인덴테이션은 크기나 형상이 상이하고, 또한 그 외곽을 남겨서 각각 인접하도록 한 것이다.
Patent KR-19990087882-A (KR)
IPC: F21V33/00
Filed: 1999-03-26
Abstract: 본 발명은 일반 가정이나 업소에서 사용하는 방등에 관한 것으로, 특히 방등몸체(10) 측면부 내면에 볼록렌즈형의 계단식 반사경(11)을 경사지도록 설치하고, 방등몸체(10)의 일측에 개량형 전자식 안정기(31)를 설치하며, 고온에서 열처리하며 성형하고 이면에 벌집형상을 이루는 상협하광의 다이아몬드형 역광편(21)이 형성된 아크릴 방등커버(20)를 형성함으로써, 기존의 방등에 비하여 조도가 증가될 수 있어 에너지를 약 70％정도 절약할 수 있으며, 
     상기 반사경(11)의 외주면을 따라 제 2 열배출 구멍(13)을 형성함으로써 제 2 의 간접조명효과를 볼 수 있고, 
     방등몸체(10) 양측에 디지털 시계(42)와 센서(32) 및 스피커(33)를 부착함으로써, 예약된 시간에 전등을 ON/OFF 할 수 있고 선택적으로 음향과 음성이 송출될 수 있어, 사용자의 기상에도 도움이 되고, 도난방지도 가능하며 야광별(22)에 의해 소등시 신비한 은하계의 별자리를 연출할 수 있도록 구성된 시계와 스피커가 부착된 에너지 절약형 방등에 관한 것이다.
Patent KR-19990078411-A (KR)
Title: 디스플레이 조명 수단을 구비한 정보 터미날 디바이스
IPC: G06F1/16
Filed: 1999-03-30
Abstract: 정보 터미날 디바이스는: 디스플레이; 자유롭게 피고 접을 수 있는 디스플레이 커버용 덮개; 및 상기 덮개 상에 구비되어 상기 디스플레이를 위로부터 조명하기 위한 조명 수단을 구비한다.
Patent KR-19990082807-A (KR)
IPC: B24B53/02
Filed: 1999-03-31
Abstract: 본 발명에따른 잉곳제조방법에 따르면 원통형 잉곳부재(1)의 둘레면 전체길이에 걸쳐 뻗어 있는 유지부재(2)에 의해 접착제를 통해 원통형 잉곳부재(1)의 둘레면이 지지되고, 유지부재(2)에 의해 지지된 절단전 피가공물(3)이 길이방향을 따라 다수의 단편으로 분할되어 연마될 디스크형상의 피가공물(5)을 얻으며, 그 특징은 상기 유지부재(2)가 연속되는 연마공정에서 연마장치(6)에 기인하는 회전력을 받기에 충분한 접착강도를 갖는 제1접착제(13)에 의해 잉곳부재(1)의 측면에 접착되는 유지층(7)과, 고정상태에서 제1접착제의 강도보다 낮은 접착강도를 갖는 제2접착제(14)에 의해 상기 유지층(7)에 중첩하여 접착된 상기 중간층(8)과, 상기 중간층(8)에 중첩하여 접속되는 동시에 상기 슬라이스장치(4)의 지지부(10)를 구비한다.
Patent KR-19990082935-A (KR)
IPC: H02J7/00
Filed: 1999-04-06
Abstract: 임의의 수의 배터리 셀을 가지는 복수의 배터리 팩, 배터리 팩을 충전하는 배터리 충전기 및 배터리 팩을 사용할 수 있는 전자장치가 제공된다. 임의 수의 내장된 배터리 셀을 가지는 배터리 팩에 있어서, 단자는 하나의 셀 팩의 단자위치와 동일한 위치에 제공된다. 충전기 및 팩을 사용하는 전자장치는 두 개 이상의 평행하게 내장된 셀을 가지는 팩을 고정할 수 있는 팩 고정면을 가지고 하나 이상의 셀 팩과 배터리 팩을 결합하기 위한 결합수단과 하나의 셀 팩의 양극 및 음극단자에 연결되고 충전과 방전이 수행될 수 있는 위치에 배치되는 연결수단을 포함한다. 따라서 다양한 형상을 가지는 팩이 사용될 수 있다.
Patent KR-20000066070-A (KR)
Inventor: KIM SEON U
IPC: H04B1/40
Filed: 1999-04-13
Abstract: PURPOSE: A method for driving specific menus of a portable terminal is provided to make a user input registered commands only, relating to various functions when the user registers menu calling commands of each function to perform necessary functions, so as to simply select the specific menus by calling the registered commands. CONSTITUTION: A controller inputs character strings with a pen from an input window included in an input circuit. The controller checks whether inputted contents are character strings. If so, the controller checks whether the checked character strings are equal to the inputted character strings. If the checked character strings are read as specific patterns, the controller checks whether the patterns are equal to registered patterns. When the controller reads the inputted contents as character strings or patterns, registered menus corresponding to the character strings or the patterns are searched in a registered menu searcher. Corresponding programs stored in a program storage are called by using code addresses of the registered menus.
Patent KR-20000073571-A (KR)
Inventor: KIM DU RI
IPC: F25D11/00
Filed: 1999-05-12
Abstract: PURPOSE: A refrigerator having a displayer and a control method thereof are provided to decrease power consumption by preparing a display light turned on only as needed. CONSTITUTION: A rear light control unit(61) turns on and off a rear light(51) by receiving a data from an ultra violet light sensor(20). When an object is sensed by the ultra violet light sensor, the rear light control unit turns on the rear light. Otherwise, the rear light control unit turns off the rear light. In addition, the rear light is also turned on and off by a rear light switch(40). The rear light switch is connected to the rear light control unit. With the rear light switch turned off, the rear light control unit does not turn on the rear light even if the manipulation from a manipulative button(13) is sensed.
Patent KR-20000074385-A (KR)
Inventor: LEE HUN KU
IPC: E04D3/35
Filed: 1999-05-20
Abstract: PURPOSE: A sandwich panel roof which is improved in waterproof and a construction method are provided to be used without leakage in the long time. CONSTITUTION: In the sandwich panel roof which is improved in waterproof, a thermal insulation layer(3) is inserted in between a flat lower plate(2) and an upper plate which has regular curves, and then fastened with bolt(4). A ply wood(5) is made of water proofing material, and fastened by numerous bolts(7) in the upper part of prominent face of upper plate, and then a membrane waterproofing sheet(8) is bonded on the upside. The construction method comprises the steps of; making the whole face flat by fastening the upper plate with the ply wood by numerous bolts; coating adhesive on the upside of ply wood; and bonding the waterproofing sheet on the ply wood.
Patent KR-20000006214-A (KR)
Inventor: YUYAMA HIROYUKI
IPC: G16H70/20
Filed: 1999-06-16
Abstract: PURPOSE: The system is to flexibly respond to the change of preparation stand layout instead of fixedly connecting to the control program of the system control circuit and set prescription printers for printing data as arranged. CONSTITUTION: The system consists of a control for outputting control signal out of a logic operation based on the prescription data including patient name or code, drug code, use, dosage, and printers for printing prescription slips under control signal. The control has a data storage and a setting unit to set the printers for prescription of medicine.
Patent KR-19990068813-A (KR)
Title: 자바미들웨어시스템및그운용방법
IPC: G06F15/16
Filed: 1999-06-23
Abstract: 본 발명은 자바 언어를 이용한 자바 미들웨어 시스템에 관한 것으로, 특히 웹 환경에서의 인터넷 및 인트라넷 프로그램을 개발할 때 사용되는 자바 미들웨어 시스템 및 그 운용 방법에 관한 것이다. 
     본 발명의 자바 미들웨어 시스템은 클라이언트와 서버로 구성된 네트워크 상에서, 트랜잭션 서버 프로그램을 구동하여 각각의  데이터베이스 서버와의 연결을 유지하며, 각각 자신만의 고유한 TCP/IP 포트를 개방한 상태에서 클라이언트의 접속을 대기하도록 하는 웹 서버와; 클라이언트 사용자가 상기 웹 서버의 URL로 접속하기 위한 브라우저와; 상기 웹 서버에서 관련 HTML 문서와 그 문서에 포함된 애플렛을  클라이언트로   전송하며   자바  서버와의   통신을  하기 위한  JTS(Java Transaction Server) 섹션과; 상기 JTS 섹션을 통해 요구된 작업 요청을 지정된 포트로 전송받고, 지정된 포트로 수신된 클라이언트의 요구 사항을 분석하여 그 내용에 따라 데이터베이스 서버로 클라이언트가 요구한 자료를 요청하는 자바 트랜잭션서버와; 상기 자바 트랜잭션 서버의 요구 사항을 처리하고, 그 처리된 결과를 상기 자바 트랜잭션 서버로 전송하는 데이터베이스 서버와; 상기 서버들의 부하를 분산하는 BP(Branch Process) 서버를 포함하여 구성된 것이다.
Patent KR-20010008480-A (KR)
Inventor: KIM DO HYEONG
IPC: G11B20/10
Filed: 1999-07-01
Abstract: PURPOSE: A method for managing digital interface connection is provided to demand control of bit stream transfer to a source apparatus while detecting access of the bit stream in transfer from other synchronizing apparatus. CONSTITUTION: The first to the fifth apparatuses(310-350) are connected to IEEE1394 bus. Herein, the first apparatus is a source apparatus, and the second to the fifth apparatus are synchronizing apparatuses. The second apparatus receives output bit stream from the source apparatus to display on a screen. The second apparatus detects other synchronizing apparatuses to examine access to the bit stream in transfer.
Patent KR-20000011498-A (KR)
Inventor: UKONO MASAO
IPC: D04B1/00
Filed: 1999-07-06
Abstract: PURPOSE: A knitting method and its knitted fabric are provided to improve the appearance of the side end of a double-faced knitted fabric and the productivity. CONSTITUTION: The knitting method comprises processes of: finishing a knitting by inducing more than one needle, and starting to knit the side started a course knitting by the needle of the other side bed; knitting a course from the yarn supply hole of a track located in a preceding side if the last knitting of the side end is the needle of a rear bed, and sequentially knitting the course from the yarn supply hole of the rear track if the last knitting is the needle of a front bed; forming pipings(5, 5r, 5l) in the one side among the side end of the knitted fabric.
Patent KR-20010009803-A (KR)
Inventor: KANG GYEONG HO
IPC: G09G3/296
Filed: 1999-07-14
Abstract: PURPOSE: A division driving device of plasma display panel is provided to form a uniform image quality for respective divided sections and be simplified in structure because the scan electrode lines of the respective divided sections are driven by one scan driver. CONSTITUTION: The division drive device of plasma display panel comprises a controller(21), address drivers(221,222) and a common driver(24). The n-th scan electrode lines(Y1,...Yn) of a plasma display panel(1) are equally divided to be driven. The first to n/2 scan electrode lines(Y1-Yn/2) are assigned to an upper section and the (n/2+1)th to the nth scan electrode lines(Yn/2+1-Yn) are assigned to a lower section. The scan electrode lines corresponding to respective sections are commonly connected to corresponding outputs(O1,...On/2) of one scan driver(231).
Patent KR-20010010054-A (KR)
Inventor: KIM IL BAE
IPC: H01L23/00
Filed: 1999-07-15
Abstract: PURPOSE: A method for manufacturing a can package is provided to improve reliability, by electrically shorting a can and a header without a physical impact to perform a welding between two interfaces while using an electrode made of a highly strong material. CONSTITUTION: A header(10) is loaded. A can(20) is loaded on the header after the header is loaded. An electrode(5) contacts the lid of the can. The lid of the can is welded to the surface of the heater. The material of the electrode is a highly strong material such as a tungsten kappa.
Patent KR-20000017713-A (KR)
Title: Asphalt sealant and joint composition
Inventor: LEE HUI YEON
IPC: C08L95/00
Filed: 1999-08-02
Abstract: PURPOSE: An asphalt joint and a sealant composition are provided to improve a raid degree, and a softening point by using waste tire powder and waste expandable PS. CONSTITUTION: An asphalt joint and a sealant composition about 100 weight of asphalt comprise (A)6 to 40weight of styrene-conjugated dine block copolymer, (B)4 to 40weight of waste tire rubber powder, (C)0.01 to 50weight of waste expandable PS, (D)0 to 100 weight of a plasticizer and a softening agent, (E)0.02 to 5 weight of an adhesion agent, and (F)5 to 100 weight of a mineral charging agent. The softening point of the asphalt, which is straight asphalt, is 30 to 100 weight. The content of the styrene-conjugated diene block copolymer, which is styrene-butadiene-styrene three-block copolymer, is 20 to 60 weight. The size of particles of the rubber powder is 20 to 50 mesh. The waste expandable PS is 1 to 5 out of the asphalt 100.
Patent KR-20010016862-A (KR)
Inventor: RHO BONG GYU
IPC: G02F1/133
Filed: 1999-08-04
Abstract: PURPOSE: An MIM liquid crystal display without vertical cross talk is provided to embody 256 gray scale easily without vertical crosstalk. CONSTITUTION: A pixel(12) is comprised of two sub-pixels(13,13'). A scanning line1 for driving the sub-pixel(13) and a scanning line2 for driving the sub-pixel(13') are sequentially driven by the opposite polarity to each other, so as to reduce the selection time. A binary addressing is applied to a signal line(8) and a uniform RMS(root mean square) voltage is applied to a liquid crystal layer of MIM(metal insulator metal) element regardless of pixel information during non-selection time. To solve the insufficiency of charging rate caused by the reduction of selection time, a screen is divided into the upper and the lower, scanning lines are scanned simultaneously or the interlace scan is applied to the screen. Therefore, it is possible to embody 256 gray scale easily without vertical crosstalk.
Patent KR-20010017554-A (KR)
Inventor: CHO YONG SEON
IPC: H04L12/28
Filed: 1999-08-12
Abstract: PURPOSE: An apparatus for demultiplexing ATM cells using a dual port memory is provided to store, demultiplex and transmit cells using a dual port memory in order to prevent cell delay, which can be generated in a structure sharing a memory buffer, or data loss, which can be shown when a fault is generated in a specific channel. CONSTITUTION: An apparatus for demultiplexing ATM cells using a dual port memory consists of a dual port memory(10), a subscriber channel unit(20) and an interface control unit(30). The dual port memory(10) receives and stores ATM cells to be transmitted to the subscriber channel unit(20) from a cell bus. The subscriber channel unit(20) receives the ATM cells stored in the dual port memory(10) and executes UNI processing and line interfacing. The interface control unit(30) controls the flow of cells between the dual port memory(10) and the subscriber channel unit(20). The interface control unit(30) is comprised of a cell bus monitoring part(31), a left port address generation part(32), a subscriber channel interface part(33), a right port address generation part(34) and a channel cell counter part(35). The cell bus monitoring part(31) monitors whether a cell to be transferred to the subscriber channel unit(20) is on the cell bus. The left port address generation part(32) generates an address of the dual port memory(10) of a side to write cells from the cell bus. The subscriber channel interface part(33) checks the status of each subscriber channel to judge the possibility of cell transmission. The right port address generation part(34) generates an address of the dual port memory(10) of a side to read cells from the dual port memory(10) and to transmit the cells to relevant channels. The channel cell counter part(35) counts the cells of the dual port memory(10) by channels and notifies information and availability for the cell storage status of the dual port memory(10).
Patent KR-20010019151-A (KR)
Inventor: YU KYEONG WOON
IPC: H04N7/18
Filed: 1999-08-25
Abstract: PURPOSE: An IP phone system for an information service is provided so that a plurality of users can easily use the information service, by providing various information services, e-mail and image communication. CONSTITUTION: A plurality of IP phone terminals(10,12) are provided to be publicly used. An IP phone network connects the plurality of IP phone terminals(10,12). A main server(20) connects the IP phone terminals(10,12) and various management servers(22,24,26) through the IP phone network. The IP phone management server(22) manages the IP phone terminals(10,12). An IP phone management database(30) is connected to the IP phone management server(22) for storing management state of the IP phone terminals. The database management server(24) manages databases. An ID database(31) is connected to the database management server(24), for storing registration contents of clients. A plurality of databases(31-37) store various databases. A billing server(26) processes billing of the IP phone terminals(10,12). A billing database(38) is connected to the billing server(26) for storing billing contents of all clients. When the user wants to connect to a different kind of terminal by using the IP phone terminal, an internet connection server(28) connects the internet and the IP phone terminal. Here, the IP phone terminals can provide an image communication, voice communication, e-mail service and information service.
Patent KR-20010028811-A (KR)
Inventor: KIM MYEONG HWAN
IPC: H01F38/42
Filed: 1999-09-27
Abstract: PURPOSE: A high voltage capacitor fixation holder for fly-back transformer is provided to reliably prevent disconnection of capacitor leads by fixing, through a lead coupling section, capacitor leads drawn off from both ends of the capacitor. CONSTITUTION: A holder comprises capacitor leads(120,120') inserted into both ends of a taken-up film main body(110) of a high voltage capacitor(140) installed inside of a fly-back transformer , in such a manner that each end of capacitor leads is drawn off outwardly from the taken-up film main body; a capacitor holder(130) having a film coupling groove(150) for insertion of the taken-up film main body; and capacitor lead coupling sections(160) mounted at both ends of the capacitor holder so as to fix capacitor leads drawn off outwardly from both ends of the taken-up film main body of the high voltage capacitor.
Patent KR-20000028766-A (KR)
Inventor: HIRATA MASARU
IPC: H04J13/00
Filed: 1999-10-01
Abstract: PURPOSE: A performing method of an AFC process in a mobile station is provided to prevent the inverse dispersion of data even though a frequency in a reference oscillator is adjusted in a waiting mode. CONSTITUTION: To operate an AFC process, the existence of an incoming call is searched by receiving PCH in finger receivers(9,9) in a mobile station of a waiting mode. Then, an error of a frequency in the waiting mode is decided by receiving BCCH in a finger receiver(13), and the size of the frequency error is decided if larger than a selected value. If the frequency error is larger than the selected value, AFC process is performed using BCH by the finger receivers in a base station. If the frequency error is smaller than the selected value and the frequency is locked in the AFC process, the mobile station stops the AFC process for the control to enter the waiting mode. The AFC process using BCCH is faster than the AFC process using PCH. Therefore, the receiving is not failed even if TCXO(3) is adjusted in the frequency in the waiting mode.
Patent KR-20010036014-A (KR)
Inventor: CHOI YOUNG MOON
IPC: A46B5/00
Filed: 1999-10-05
Abstract: PURPOSE: An attaching and detaching structure of a handle of a separation type toothbrush is provided to improve durability of the toothbrush by extending life cycle of a handle for a toothbrush, contribute to quality improvement by certainly attaching and detaching a head part, and reduce waste of resources and pollution by restraining generation of waste materials. CONSTITUTION: The structure of the handle (10) of the toothbrush comprises a metallic elastic strip (30) mounted inside a fixed groove of the handle (10), and a depressed groove formed in a protruding part of the head member (20) so that the elastic strip (30) can be inserted into the depressed groove in a separation type toothbrush which is attachably and detachably formed by comprising a fixed groove formed at front end of a handle (10), and a protruding part formed at rear end of a head member (20) for being inserted into the fixed groove.
Patent KR-20000035037-A (KR)
Inventor: AZMA TOSHIYUKI
IPC: H04L27/20
Filed: 1999-10-18
Abstract: PURPOSE: A baseband signal processing circuit is provided to set the phase difference between analog I signals(A/I) of a first baseband signals and analog Q signals(A/Q) of a second baseband signals into accurate right angle. CONSTITUTION: A baseband signal processing circuit comprises a first and a second D/A converters(2,3). The first D/A converter(2) receives digital signals and first clock signals for converting the digital signals into analog signals and outputs first baseband signals. The second D/A converter(3) receives digital signals and second clock signals for converting the digital signals into analog signals and outputs second baseband signals. The first and second clock signals are synchronized. The duty ratio of one of the first and second clock signals are changed.
Patent KR-20010038739-A (KR)
Inventor: JUNG YONG JIN
IPC: H01L21/335
Filed: 1999-10-27
Abstract: PURPOSE: A method for manufacturing a semiconductor device is provided to prevent a bridge caused by a micro stringer on a landing pad and to improve reliability, by preventing damage to an insulating layer spacer surrounding a gate region. CONSTITUTION: An interlayer dielectric(112) is formed on a semiconductor substrate(100) having an access transistor. A predetermined region of the interlayer dielectric is etched to form an opening exposing a part of the semiconductor substrate on an optimum etching condition that an insulating layer spacer(110) covering a gate region of the access transistor is not damaged. A conductive layer is deposited on the resultant structure having the opening, and patterned to form a landing pad(114) for interconnection.
Patent KR-20010046014-A (KR)
Title: Speaker having flat vibration plate
Inventor: HAN BYEONG WAN
IPC: H04R7/00
Filed: 1999-11-09
Abstract: PURPOSE: A speaker having a flat vibration plate is provided to reduce distortion of sounds, to produce a wide frequency range of sounds, to reduce the speaker units for a large speaker, and to simplify the manufacturing process. CONSTITUTION: In a speaker having a flat vibration plate, the flat vibration plate(30) is located vertically of a flat voice coil plate(36). A permanent magnet comes between the upper plates(31a-d,32a-d) and the bottom plates(33a-d,34a-d). The permanent magnet and the upper and bottom plates are fixated in a base frame(35). The flat vibration plate(30) is fixed by a guide ring through an edge(39). Here, the current generated by the speaker driving circuit is given to the voice coil(38) fixed on the voice coil plate(36) and forms a magnetic field around the voice coil(38). The magnetic field produces a torque vertically vibrating the voice coil(36) and the fixed flat vibration plate(30).